In response to a request made via PM, here are the details of a Vaq de Valk play

This is the first part of Arlette by Nicholas Freeling. The details I have are:

A Long Silence 1999-07-17
The Saturday Play
For Piet Van der Valk it was just another ordinary case. No crime had been committed. It was just a matter of following a lead on a wealthy Amsterdam jeweller. But two bullets put paid to curiosity. For Piet Van der Valk, this ordinary case turns out to be his last.